阅读程序

#include <iostream>using namespace std;class base{private:    int m;public:    base() {};    base(int m){this->m=m;}    int get(){return m;}    void set(int m){this->m=m;}};//base_endint main(){    base *ptr;    ptr=new base[2];    ptr->set(30);    ptr=ptr+1;    ptr->set(50);    base a[2]= {1,9};    cout<<a[0].get()<<","<<a[1].get()<<endl; /// 1 9    cout<<ptr->get()<<",";/// 50    ptr=ptr-1;    cout<<ptr->get()<<endl;/// 30    delete[] ptr;    return 0;}

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